what kind IDE can show Intellisense code?

Dear：

what kind IDE can show Intellisense code?

I had try eclipse j2ee laste version, NetBeans 8.

IN eclipse,I find js plugin to show Intellisense code.

In NetBeans，I can show some Intellisense code， BUT when I use

Code:

var win  = new Ext.create('Ext.Window', {
        id : 'myWindow',
        title : 'My first ExtJs Window with NetBeansXX',
        width : 300,
        height : 150,
        layout : 'fit'
    });

i don't know whether there is a "id" or "title"，so I need the Intellisense code to point the key words?

is there some one help me?

thx!